Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830859 | Charge control agent and toner using same | Keiko Shiraishi, Masanori Suzuki, Toyoshi Sawada, Takuya Saito, Tatsuhiko Osaki +2 more | 2004-12-14 |
| 6821698 | Toner for developing electrostatic latent image, toner cartridge, image forming method, process cartridge and image forming apparatus | Toyoshi Sawada, Masanori Suzuki, Keiko Shiraishi, Takuya Saito | 2004-11-23 |
| 6740461 | Carrier and two-component developer for electrophotography | Masahide Yamashita, Masanori Suzuki, Kazuhito Watanabe, Keiko Shiraishi, Kohki Katoh | 2004-05-25 |
| 6716561 | Toner for developing electrostatic latent image and image forming method using same | Keiko Shiraishi, Masanori Suzuki, Masahide Yamashita, Akihiro Kotsugai, Toyoshi Sawada +1 more | 2004-04-06 |